Drier.



UNITED STATES Iratented August 4, 190d.

CHARLES W. STANTON, OF MOBILE, ALABAMA.

,DRIER.

SPECIFICATION forming part of Letters Patent No. 735,610, dated August 4, 1903. Application filed December 11,1902. Serial No. 134,827- (No model.)

T on whom, it may concern.-

Be it known that I, CHARLES W. STANTON, a citizen of the United States, residing at Mobile, in the county of Mobile and State of Alabama, have invented new and useful Improvements in Driers, of which the following is a specification. V

This invention relates to certain new and useful improvements in driers, and is adapted for drying materials of'alldescriptions, more particularly lumber and grain.

The invention aims to provide a drier particularly adapted for drying lumber, although it is applicable for main drying other materials as occasion may require, and it is furthermore adapted to separate the vapors arising from the materials being dried from the air by condensation. 7

The invention further aims to construct a drier which shall be extremely simple in construction, strong, durable, efticient in its use, and comparatively inexpensive to set up; and to this end it'consists of the novel combination and arrangement of parts herein after more specifically described, illustrated in the accompanying drawing, and particularly pointed out in the claim hereunto appended.

In describing the invention in detail reference is had to the accompanying drawing, forminga part of this specification, and which illustrates a sectional elevation of my improved drier.

Referring to the drawing by reference char acters, the drier, or what may be termed the kiln, is constructed of a bottom 1, side walls 2, a closed top 3, and front and rear walls, the front wall not shown. The rear wall is designated by the reference character 4, and as its construction is the sameas the front wall only the rear wall is shown, and it will be evident when the rear wall is described the same description applies to the front wall. The rear wall 4 is provided with a pair ofopenings, which may be entranceopenings to permit of access to the interior of the kiln, so that the material to be dried can be placed therein, and these openings are closed by the doors 5. These doors when in their closing position are preferably hermetically sealed. Within the kiln or drying-chamber is a suitable means for heating the same.

preferabl ya hermetically-sealable one.

One form is as shown and consists of an inlet-pipe 6, communicatingwith the horizontally-extending heating-pipes 7. These horizontally-extending heating-pipes are substantially U-shaped and extend from end to end of the drying-chamber and terminate in the outlet-pipe 8. As shown, the inlet-pipe 6 and outlet-pipe 8 extend in a longitudinal manner and the heating-pipes 7 in a'horizontal manner. Other forms orarrange-- ments of heatingmeans for the drying-chamber may be employed. The kiln or dryingchamber is also provided with a pair of tracks 9, upon which is run the cars or receptacles carrying the materials to be dried.

Communicating with the drying-chamber and connected to the top thereof is a. vapor or gas take-off 10. The connection at the end of the take-off pipe 10 with the kiln is The outerend of the vapor-take-ofi pipe 10 is connected to one end of a condensing-worm 11, as at 12. The condensing-worm 11 is mounted in a suitable receptacle 13, in which is a suitable cooling medium 14. The receptacle 13 is provided with a supply-pipe 15 and an overflow-pipe 16 for the cooling medium and is preferably mounted upon a suitable support 17. The free end of the condensingworm ll communicates, as at 18, with the discharge-pipe 19, the lower end of the latter extending into a suitable trap. This trap, as shown, consists of a tank or vessel 20, provided with a sealing medium 2l,andinto which extends, as before stated, the discharge-pipe 19. As shown, the discharge-pipe l9 enters the tank or vessel 20 slightly above the bottoin thereof. The tank or vessel 20 is provided with a cleansingpipe 22, having a "alve 23, and this pipe 22 may also be termed a discharge-pipe. The tank or vessel '20 is further provided with an overflow-pipe 24, attached to one side thereof near its top and always above the level of the sealing medium 21. The tank or vessel 20 is further provided with a discharge-pipe 25, having a valve 26. The pipe '25 is connected to the top of the tank or vessel 20. The trap, into which extends the pipe 19, is adapted to prevent back atmospheric pressure to the condensing-worm and to the kiln or drying-chamber.

ICO

The operation of the drier is as follows: Assuming that the material to be dried is placed in the drying-chamber, which, as before stated, is a closed one, the action of the heat will dry the material, and the vapors or gases passing off therefrom will be discharged from the drying-chamber by means of the takeoff pipe 10 and then pass into the condensingworm, where they will be condensed and dis charged into the trap. If the products of condensation are of less specific gravity than the sealing medium, they will rise to the top thereof and overflow through the pipe 24: and be carried off and used for any purpose desired. If the products of condensation are of greater specific gravity than the sealing medium, they will gradually force the sealing medium from the trap by the overflow through the pipe 24, and the products of condensation will then eventuallybecomeasealing medium, thus acting to prevent back atmospheric pressure to the drying-chamber. The gases or other products which do not condense are discharged through the pipe 26. The pipe 22 will permit of the trap being cleaned of any matters whose level is below the overflowpipe 24, Whether they be uncondensed products or products of condensation. The cooling medium for the vessel preferably circulates through the receptacle 13, so as to have it at a proper temperature to perform the function of condensation.

It is thought the many advantages of a drying apparatus constructed in accordance with the foregoing description, taken in connection with the accompanying drawing, can be readily understood, and it will furthermore be evident that changes, variations, and modifications can be resorted to without departing from the spirit of the invention or sacrificing any of its advantages, and I therefore do not wish to restrict myself to the details of construction hereinbefore described and as shown in the accompanying drawing, but reserve the right to make such changes, variations, and modifications as come properly within the scope of the protection prayed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A drier comprising a closed kiln, tracks arranged therein and adapted to receive receptacles containing the material to be operated upon, horizontally and longitudinally extending heating-pipes arranged in the bottom of the said kiln, a take-off pipe connected to the top of said kiln and communicating with the interior thereof, a receptacle containing a cooling medium, an overflow-pipe extending within said receptacle, a supply-pipe cornmunicating with said receptacle, a condensing-worm arranged in said receptacle and having its upper end extending through the side of the said receptacle and connected to said take-off pipe and having itslower end projecting through the bottom of said receptacle, a trap provided with a liquid seal and an overflow-pipe, and a discharge-pipe connected to the lower end of said condensing-worm and at its lower end extending through the side and into said trap near the bottom thereof, said lower end of the discharge-pipe projecting into the sealing medium in the trap.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES W. STANTON.

Witnesses:

EWELL A. DICK, M. L. BOGAN. 

